This thesis focuses on the topic of RFID - radio frequency identification of objects. The theoretical part is focused on the definition and history of RFID systems, the main components of this technology, regulation and standards in the use of RFID, categories of RFID and its implementing into business processes. The theoretical part also describes the costs of RFID, potential benefits arising from its implementation and examples of areas in which RFID technology is applied. The practical part deals with the implementation of RFID in a particular company and describes situation of the company before and after the RFID implementation. Furthermore, practical part summarizes the results of interviews with employees of the company and a listing of key benefits that RFID has brought. At the end of the practical part the author proposes some improvements to the existing use of RFID system.